JP2589621Y2 - Fiber optic cable distributor - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention converts an external optical fiber cable and an internal optical fiber cable drawn into a cabinet into a number of optical cords (jumper wires), and connects these optical cords via connectors. To a fiber optic cable distributor.

[0002]

2. Description of the Related Art
Various types of wiring boards of this type are provided, and switching of lines is performed by changing the connection of a connector attached to the tip of an optical cord. However, when the number of connectors to be replaced increases with the number of lines and the frequency of attachment / detachment also increases, the conventional wiring board does not have a sufficient working space for attaching / detaching the connectors, resulting in poor workability. There was a problem. In addition, since sufficient measures have not been taken for the extra length treatment of the optical cord around the connector connection,
Since the extra length is cluttered, the workability at the time of attaching / detaching the connector and at the time of maintenance / inspection is further deteriorated.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an optical fiber cable wiring which makes it easy to attach / detach a connector and which can properly process an extra length of an optical cord. To provide a board.

[0004]

In order to achieve the above object, according to the present invention, a connector attached to the tip of an optical cord is detachably connected to the front and back of the optical cord via a connector connecting plate, and is detachable. The extra length processing bobbin
An optical fiber with a connector connection unit
For fiber cable distribution boards, for almost vertical substrates
Directly on the front and back of the connector connection plate
A pair of connectors are connected from the front and back so that they
Connector pairs are arranged side by side over almost the entire length of the connector connection plate
And are arranged side by side on the front side of the connector connection plate.
Just below the multiple connectors
Number of extra bobbins, the center axis of which is horizontal and coaxial
They are arranged side by side .

[0005]

According to the present invention, the line connection is changed by attaching and detaching the connector at the front end of the optical cord from the front of the connector connecting plate. The extra length of the optical cord is wound around a detachable extra length processing bobbin and processed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 is a front view showing the internal structure of an optical fiber cable distribution board 1 according to this embodiment, and FIG. 2 is a right side view. In these figures, 2 is a cabinet,
Cable holding guides 3A and 3B for holding external and intra-office optical fiber cables drawn into the inside of the cabinet 2 are arranged in the lower stage of the cabinet 2. Guide 3
Above A and 3B, tension member holding guides 4A and 4B for holding the tension members in the optical fiber cable are arranged.

Above the guides 4A and 4B, fusion trays 5A and 5B for fusion splicing the core wire of the core unit in the optical fiber cable to the core wire in the optical cord as a jumper wire are stacked in multiple stages. Are located. Here, guides 3A, 3B, 4A, 4B and fusion trays 5A, 5B
The symbol "A" corresponds to the optical fiber cable inside the office, and the symbol "B" corresponds to the optical fiber cable outside the office. That is, the intra-office optical fiber cable and the out-of-office optical fiber cable are pulled in from below the distribution box via the cable holding guides 3A and 3B, respectively, and after the tension members are held via the guides 4A and 4B, respectively. Are accommodated in the fusion trays 5A and 5B to perform fusion splicing with the optical cord.

Above the fusion tray 5A, a plurality of connector connection units 100, which are the main part of the present invention, are arranged. In FIG. 1, for convenience, only the lowermost unit 100 is shown by a solid line, and other units are shown by imaginary lines. Also, as shown in FIG.
A front door 6 and a back door 7 are attached to the front and back of the cabinet 1 so as to be openable and closable.

Next, the structure of the connector connection unit 100 will be described with reference to FIGS. In these figures, reference numeral 101 denotes a board on which a connector connecting plate 102 is attached so as to project obliquely upward. On the front and back of the connector connection plate 102, a large number of connectors 104 and 105 for mutually connecting the optical cords 201 and 202 (see FIG. 4) via a connector receiving portion 103 are detachably arranged in parallel. As is apparent from FIG. 4, the connectors 104 and 105 are respectively mounted in two stages, upper and lower, and each stage corresponds to a line number, and the number display 106 is provided at the upper end of the connector connection plate 102. Is attached.

On the other hand, a bobbin housing box 107 having a length corresponding to the connector connection plate 102 is provided below the connector connection plate 102. And the bobbin storage box 10
7, a surplus processing bobbin 108 in a number corresponding to the number of lines, that is, the total number of connectors 104 or 105 is detachably accommodated. That is, FIG.
As can be seen, the diagonally upper part of the substrate 101 is almost vertical.
The right and left sides of the attached connector connection plate 102
Connectors 104 and 105 are connected from the front and back
And each connector pair is substantially the entire length of the connector connection plate 102.
And the connector connection plate 10
2, a plurality of connectors 104, 10 arranged side by side
Directly below 4, ……, a plurality of extra lengths corresponding to each connector
The bobbins 108, 108, ...
Are arranged side by side on the same axis. Also,
A duct 109 for accommodating a large number of optical cords is provided on the front surface of the bobbin accommodating box 107. Further, FIG.
As shown in FIG.
A holding plate 110 for mounting a large number of optical cords connected to the optical disc is protruded.

FIG. 5 is a perspective view showing a main part of the present embodiment. In FIG. 5, reference numeral 8 denotes an optical cord holder attached to the inner surface of the side slope of the cabinet 2, reference numeral 203 denotes an intra-office optical fiber cable, and reference numeral 204 denotes an office. External optical fiber cable.
In this figure, the illustration of the connector and the excess length processing bobbin is omitted for convenience.

Next, the operation of the present invention will be described with reference to FIG. 6, focusing on the connector connection unit 100.
For example, a large number of optical cords 202 coming out of the fusion tray 5B
Is guided onto the holding plate 110 via the optical cord holder 8,
The connector 105 at the end of the optical cord 202 is connected to the connector receiving portion 103 of a predetermined line from the back of the connector connecting plate 102.
Connected to.

On the other hand, a large number of optical cords 201 coming out of the fusion tray 5A are transferred via the optical cord holder 8 to the duct 109.
And the extra length is the extra length processing bobbin 108
After that, the connector 104 at the tip is connected to the connector receiving portion 103 of a predetermined line from the surface of the connector connecting plate 102. Here, it is assumed that the connector 105 on the back side of the connector connection plate 102 is already connected at the time of shipment of the wiring board from the manufacturer, and that the user exclusively connects the connector 104 on the front side according to the line scale or the like.

When connecting and disconnecting a connector in order to change the connection of the line, a predetermined connector 104 inside the station may be connected and detached from the front of the wiring board. As is clear from FIG. Since a wide working space is secured in front of the plate 102, it can be easily attached and detached. Further, when the connection of the connector 104 is changed, the corresponding excess length processing bobbin 108 may be taken out of the bobbin housing box 107 and replaced with a new connection destination of the connector 104. At this time, if the extra length is generated, it is wound around the bobbin 108, and if the extra length is insufficient, it may be unwound from the bobbin 108.

The above embodiment is directed to a case where optical fiber cables outside the office and inside the office are drawn into a distribution board, converted into optical codes, and these are connected by a connector. Of course, the present invention can also be applied to a system in which a group is drawn into a wiring board, an optical fiber cable is converted into an optical code via a fusion tray, and then connected to the optical code group by a connector. Also,
The number of connector connection units can be any number according to the number of lines.

[0016]

As described above, according to the present invention, the line connection can be switched by attaching and detaching the connector at the front end of the optical cord only at the front of the connector connection plate, that is, only at the front of the wiring board. Work can be performed, and workability during line switching and maintenance and inspection can be significantly improved. Thus, there is no inconvenience that the connector of the adjacent line is accidentally disconnected when the work space is insufficient. Since the number of connector connection units can be arbitrarily increased or decreased according to the number of lines, there is versatility that can flexibly cope with an increase or decrease in the number of lines.

Since the extra length of the optical cord can be wound around a detachable extra length processing bobbin and processed, the extra length can be tidyly processed for each core, and the extra core wire diameter can be reliably secured. At the same time, it is possible to prevent the extra length from obstructing various operations or impairing the appearance.

Since the fusion tray for converting the optical fiber cable into the optical cord and the connector connection unit are completely separated from each other, there is no possibility that the core wire may be broken and the reliability can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an internal structure of an embodiment of the present invention.

FIG. 2 is a right side view of the embodiment.

FIG. 3 is a front view of the connector connection unit.

FIG. 4 is a side view of the connector connection unit.

FIG. 5 is a perspective view showing a main part of the embodiment.

FIG. 6 is a side view for explaining the operation of the connector connection unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Optical fiber cable distribution board 2 Cabinet 3A, 3B Cable holding guide 4A, 4B Tension member holding guide 5A, 5B Fusion tray 6 Front door 7 Back door 8 Optical code holder 100 Connector connection unit 101 Board 102 Connector connection plate 103 Connector receiving portions 104, 105 Connector 106 Number display 107 Bobbin receiving box 108 Extra length processing bobbin 109 Duct 110 Holding plate 201, 202 Optical code 203 Local optical fiber cable 204 External optical fiber cable

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) H04Q 1/00-1/16

Claims (1)

(57) [Scope of request for utility model registration] 1. A connector attached to an end of an optical cord is detachably connected to the front and back sides of the optical cord via a connector connecting plate, and a detachable extra-length processing bobbin is attached to the detachable extra length bobbin.
An optical fiber with a connector connection unit
In a fiber cable distribution box, a connector installed diagonally above a substantially vertical board
A pair of connectors face each other perpendicular to the front and back of the
Connected from the back, each connector pair is
Almost the entire length of the connector
Immediately below the multiple connectors arranged side by side on the
Several extra bobbins corresponding to the connectors
An optical fiber cable distribution board, wherein axes are arranged side by side in a horizontal direction and coaxially .